blob: 210edf944e0aa561f059a8904ad389ca7144d75d [file] [log] [blame]
// Copyright 2019 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
//
// Flags: --allow-natives-syntax --opt --no-always-opt
// Flags: --no-stress-flush-bytecode
let string = "foobar";
function f(useArrayIndex) {
let index = useArrayIndex ? '1': '4294967296';
return string.charCodeAt(index);
}
%PrepareFunctionForOptimization(f);
f(true);
f(true);
%OptimizeFunctionOnNextCall(f);
f(false);
assertUnoptimized(f);
%PrepareFunctionForOptimization(f);
f(true);
f(true);
%OptimizeFunctionOnNextCall(f);
f(true);
// no deopt here
f(false);
assertOptimized(f);